git reimport

archive/2017.09/2017.09.19 - unsorted/A.java

@@ -0,0 +1,41 @@
+package chelper;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import io.InputReader;
+import io.OutputWriter;
+import misc.SimpleSavingChelperSolution;
+
+
+public class A extends SimpleSavingChelperSolution {
+
+  public void solve(int testNumber, InputReader in, OutputWriter out) {
+    wrapSolve(testNumber, in, out);
+  }
+
+  @Override
+  public void solve(int testNumber) {
+    int n = in.nextInt();
+    int x = in.nextInt();
+    int[] a = in.nextIntArray(n);
+
+    Set<Integer> set = new HashSet<>();
+    for (int i = 0; i < n; i++) {
+      set.add(a[i]);
+    }
+
+    int ans = 0;
+
+    for (int i = 0; i < 1000; i++) {
+      if (i < x && !set.contains(i)) {
+        ans++;
+      }
+      if (i == x && set.contains(i)) {
+        ans++;
+      }
+    }
+
+    out.println(ans);
+  }
+}